UBUNTU-CVE-2026-75146

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Source
https://ubuntu.com/security/CVE-2026-75146
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-75146
Upstream
  • CVE-2026-75146
Downstream
Related
Published
2026-08-19T17:21:00Z
Modified
2026-09-10T00:56:43Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
  • 7.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

FFmpeg before commit 65b0dab contains an out-of-bounds read in the DASH demuxer (libavformat/dashdec.c). When a live DASH manifest is refreshed with a startNumber that is lower than the previous value, the current sequence number is driven negative. The fragment retrieval function checked only the upper bound before indexing the fragments array, allowing a negative index to be used and causing an out-of-bounds read. A malicious or misconfigured DASH server can trigger this by serving a live manifest with a decreasing startNumber across a manifest refresh.

References

Affected packages

Ubuntu:Pro:14.04:LTS
libav

Package

Name
libav
Purl
pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6:0.*
6:0.8.7-1ubuntu2
6:9.*
6:9.10-1ubuntu1
6:9.10-1ubuntu2
6:9.10-1ubuntu5
6:9.10-1ubuntu6
6:9.10-1ubuntu7
6:9.11-2ubuntu1
6:9.11-2ubuntu2
6:9.13-0ubuntu0.14.04.1
6:9.14-0ubuntu0.14.04.1
6:9.16-0ubuntu0.14.04.1
6:9.18-0ubuntu0.14.04.1
6:9.20-0ubuntu0.14.04.1
6:9.20-0ubuntu0.14.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libav-tools",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice-extra-53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter-extra-3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavresample1",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil-extra-52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale-extra-2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"
Ubuntu:Pro:18.04:LTS
ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7:3.4.11-0ubuntu0.1+esm15

Affected versions

7:3.*
7:3.3.4-2
7:3.3.4-2build3
7:3.4-2ubuntu2
7:3.4-4
7:3.4-4build1
7:3.4.1-1
7:3.4.1-1build1
7:3.4.2-1
7:3.4.2-1build1
7:3.4.2-2
7:3.4.4-0ubuntu0.18.04.1
7:3.4.6-0ubuntu0.18.04.1
7:3.4.8-0ubuntu0.2
7:3.4.11-0ubuntu0.1
7:3.4.11-0ubuntu0.1+esm1
7:3.4.11-0ubuntu0.1+esm2
7:3.4.11-0ubuntu0.1+esm3
7:3.4.11-0ubuntu0.1+esm4
7:3.4.11-0ubuntu0.1+esm5
7:3.4.11-0ubuntu0.1+esm6
7:3.4.11-0ubuntu0.1+esm7
7:3.4.11-0ubuntu0.1+esm8
7:3.4.11-0ubuntu0.1+esm9
7:3.4.11-0ubuntu0.1+esm10
7:3.4.11-0ubuntu0.1+esm11
7:3.4.11-0ubuntu0.1+esm12
7:3.4.11-0ubuntu0.1+esm13
7:3.4.11-0ubuntu0.1+esm14

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra57",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavcodec57",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavdevice57",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra6",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavfilter6",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavformat57",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavresample3",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libavutil55",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libpostproc54",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libswresample2",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        },
        {
            "binary_name": "libswscale4",
            "binary_version": "7:3.4.11-0ubuntu0.1+esm15"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"
Ubuntu:Pro:20.04:LTS
ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7:4.2.7-0ubuntu0.1+esm16

Affected versions

7:4.*
7:4.1.4-1build2
7:4.2.1-2
7:4.2.1-2ubuntu1
7:4.2.2-1build1
7:4.2.2-1ubuntu1
7:4.2.4-1ubuntu0.1
7:4.2.4-1ubuntu0.1+esm1
7:4.2.7-0ubuntu0.1
7:4.2.7-0ubuntu0.1+esm1
7:4.2.7-0ubuntu0.1+esm2
7:4.2.7-0ubuntu0.1+esm3
7:4.2.7-0ubuntu0.1+esm4
7:4.2.7-0ubuntu0.1+esm5
7:4.2.7-0ubuntu0.1+esm6
7:4.2.7-0ubuntu0.1+esm7
7:4.2.7-0ubuntu0.1+esm8
7:4.2.7-0ubuntu0.1+esm9
7:4.2.7-0ubuntu0.1+esm10
7:4.2.7-0ubuntu0.1+esm11
7:4.2.7-0ubuntu0.1+esm12
7:4.2.7-0ubuntu0.1+esm13
7:4.2.7-0ubuntu0.1+esm14
7:4.2.7-0ubuntu0.1+esm15

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavcodec-extra58",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavcodec58",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavdevice58",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavfilter-extra7",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavfilter7",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavformat58",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavresample4",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libavutil56",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libpostproc55",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libswresample3",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        },
        {
            "binary_name": "libswscale5",
            "binary_version": "7:4.2.7-0ubuntu0.1+esm16"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"
Ubuntu:Pro:22.04:LTS
ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7:4.4.2-0ubuntu0.22.04.1+esm15

Affected versions

7:4.*
7:4.4-6ubuntu5
7:4.4.1-2ubuntu1
7:4.4.1-3ubuntu1
7:4.4.1-3ubuntu2
7:4.4.1-3ubuntu3
7:4.4.1-3ubuntu5
7:4.4.2-0ubuntu0.22.04.1
7:4.4.2-0ubuntu0.22.04.1+esm1
7:4.4.2-0ubuntu0.22.04.1+esm2
7:4.4.2-0ubuntu0.22.04.1+esm3
7:4.4.2-0ubuntu0.22.04.1+esm4
7:4.4.2-0ubuntu0.22.04.1+esm5
7:4.4.2-0ubuntu0.22.04.1+esm6
7:4.4.2-0ubuntu0.22.04.1+esm7
7:4.4.2-0ubuntu0.22.04.1+esm8
7:4.4.2-0ubuntu0.22.04.1+esm9
7:4.4.2-0ubuntu0.22.04.1+esm10
7:4.4.2-0ubuntu0.22.04.1+esm11
7:4.4.2-0ubuntu0.22.04.1+esm12
7:4.4.2-0ubuntu0.22.04.1+esm13
7:4.4.2-0ubuntu0.22.04.1+esm14

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavdevice58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra7",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter7",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat-extra58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavutil56",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libpostproc55",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libswresample3",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libswscale5",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"
Ubuntu:Pro:24.04:LTS
ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7:6.1.1-3ubuntu5+esm13

Affected versions

7:6.*
7:6.0-6ubuntu1
7:6.0-9ubuntu1
7:6.1-2ubuntu1
7:6.1-3ubuntu1
7:6.1-4ubuntu1
7:6.1-5ubuntu1
7:6.1.1-1ubuntu1
7:6.1.1-3ubuntu1
7:6.1.1-3ubuntu5
7:6.1.1-3ubuntu5+esm1
7:6.1.1-3ubuntu5+esm2
7:6.1.1-3ubuntu5+esm3
7:6.1.1-3ubuntu5+esm4
7:6.1.1-3ubuntu5+esm5
7:6.1.1-3ubuntu5+esm6
7:6.1.1-3ubuntu5+esm7
7:6.1.1-3ubuntu5+esm8
7:6.1.1-3ubuntu5+esm10
7:6.1.1-3ubuntu5+esm11
7:6.1.1-3ubuntu5+esm12

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec-extra60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavdevice60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter-extra9",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter9",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat-extra60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavutil58",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libpostproc57",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libswresample4",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libswscale7",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"
Ubuntu:Pro:26.04:LTS
ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7:8.0.1-3ubuntu2+esm4

Affected versions

7:7.*
7:7.1.1-1ubuntu4
7:7.1.2-1ubuntu3
7:7.1.2-1ubuntu4
7:7.1.3-1ubuntu1
7:8.*
7:8.0.1-2ubuntu1
7:8.0.1-3ubuntu1
7:8.0.1-3ubuntu2
7:8.0.1-3ubuntu2+esm1
7:8.0.1-3ubuntu2+esm3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavdevice62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavutil60",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswresample6",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswscale9",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-75146.json"